Regearing

I mostly see write ups for the 3rd gens for regearing. Im curious about the differences for the 2nd gen.

 

The 2nd gen is a much torquier motor so low end power is better. However generally the gear ratio recommendations are nearly the same.

I have a 2nd gen on 35s, but with the 6mt. I chose 4.88 gears and I would not want to go lower. I top out at 80mph for comfortable rpm. Typically 5.29s are recommended for 35s

33s are probably in the 4.10 and 4.56 ranges. I will let others confirm that though.

 

For the 4.0 non prerunner 6 lug you will maintain (roughly) stock gear ratios with:
33" tires and 4.10 gears
35" tires and 4.30 gears

Getting into 4.56, 4.88, 5.29 benefits low range off-road driving, but makes the engine run at higher rpms to reach highway speeds, greatly reducing fuel economy.

The most effective way to get truly low gearing is a second transfer case, aka crawl box.